If there's one color service defining fall 2026, it's dimensional brunette. Rich, deep, warm — and nothing like the flat, one-dimensional brunette of years past. This is brunette with depth, movement, and light — and we cannot keep up with the demand for it. What Is Dimensional Brunette? Dimensional brunette is a multi-tonal coloring technique that creates depth and movement within a brunette base. Instead of one flat shade of brown, the hair has darker roots, mid-tones with